Name: erR10175 Date: 02/04/2004


 
  The method

public Schema newSchema(File schema)

in the class javax.xml.validation.SchemaFactory does not detect
invalid XPath expressions in identity-constraint (key/keyref/unique) field
and selector values.

  The following expressions:

"./ /.", "| imp:sid", "xpns : *", "xpns :*"

violate BNFs specified for the selector and field attributes in XML Schema Structures,
Section 3.11.6 Constraints on Identity-constraint Definition Schema Components.

The bug affects the following new JCK-15 beta2 tests adopted from W3C XSTC-20020116 testsuite:
    api/xml_schema/msxsdtest/identityConstraint/idJ030.html#idJ030
    api/xml_schema/msxsdtest/identityConstraint/idJ008.html#idJ008
    api/xml_schema/msxsdtest/identityConstraint/idJ017.html#idJ017
    api/xml_schema/msxsdtest/identityConstraint/idJ015.html#idJ015
    api/xml_schema/msxsdtest/identityConstraint/idI022.html#idI022
    api/xml_schema/msxsdtest/identityConstraint/idI016.html#idI016
    api/xml_schema/msxsdtest/identityConstraint/idI014.html#idI014
    api/xml_schema/msxsdtest/identityConstraint/idI007.html#idI007

The bug is found in jdk1.5.0/beta/b35.

To reproduce the bug compile and run the following code as shown in the log below.
------------------------------------------- test.xsd
<?xml version="1.0"?>
<xsd:schema xmlns:xsd="http://www.w3.org/2001/XMLSchema">
        <xsd:element name="root">
                <xsd:complexType>
                        <xsd:sequence>
                                <xsd:element ref="tid" maxOccurs="unbounded"/>
                        </xsd:sequence>
                </xsd:complexType>
                <xsd:unique name="uid">
                        <xsd:selector xpath=".//tid"/>
                        <xsd:field xpath="./ /."/>
                </xsd:unique>
        </xsd:element>
        <xsd:element name="tid" type="xsd:string"/>
</xsd:schema>
----------------------------------------------------

------------------------------------------ test.java
import java.io.File;
import org.xml.sax.SAXException;
import org.xml.sax.SAXParseException;
import org.xml.sax.helpers.DefaultHandler;
import javax.xml.validation.SchemaFactory;

public class test {

    protected static class ErrorHandler extends DefaultHandler {
        public int errorCounter = 0;

        public void error(SAXParseException e) throws SAXException {
            System.out.println(e);
            errorCounter++;
        }

        public void fatalError(SAXParseException e) throws SAXException {
            System.out.println(e);
            errorCounter++;
        }
    }

    public static void main(String [] args) {
        SchemaFactory schemaFactory =
                SchemaFactory.newInstance("http://www.w3.org/2001/XMLSchema");

        ErrorHandler errorHandler = new ErrorHandler();
        schemaFactory.setErrorHandler(errorHandler);

        try {
            schemaFactory.newSchema(new File(args[0]));
        } catch (SAXException e) {
            exit(1, "Fatal Error: " + e);
        }

        if (errorHandler.errorCounter == 0) {
            exit(1, "Failed: " + args[0] + " is valid");
        } else {
            exit(0, "Passed.");
        }
    }

    public static void exit(int errCode, String msg) {
        System.out.println(msg);
        System.exit(errCode);
    }
}
----------------------------------------------------

------------------------------------------------ log
$javac test.java && java -showversion test test.xsd
java version "1.5.0-beta2"
Java(TM) 2 Runtime Environment, Standard Edition (build 1.5.0-beta2-b35)
Java HotSpot(TM) Client VM (build 1.5.0-beta2-b35, mixed mode)

Failed: test.xsd is valid
----------------------------------------------------

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